From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 4FCB32253FB; Thu, 20 Mar 2025 14:22:28 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.137.202.133 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1742480552; cv=none; b=bU5GbN1mnoWVkyAo4XfrzTlhmAjKhNOuz6fvzG4qLr1oGIvUUI4to7ttFVLuV8O3bk8SsVtZEwKXNp6ZVuuuVO8gCLtBGwVRzq5BHF1mwRYtfZxi5MHDv66gJ1kpZnNFjVUPAPZshqZVeI5nYbjbQMalcAZKeO1OJ8QMqVDUHEs= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1742480552; c=relaxed/simple; bh=IdkMRHnUO/qRTR7NCURnpDcjkokfTVGPb8CQ59hfS1k=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=fhcb665vLW+oVrQAu1bo+CSy3uFS+JIWKRntvhzxE4nlfJM0N+8EZFPLcBbSguXnbdwDqCpb5uVn04IuSaO4BfJER6QNu+dpwvh3b/8FXIhIgdMKtJfS4iJrvWSqREhltuNRb91zEeWT2ebQmqSLhH414fvpLim/Qn4U0pGISiI= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=infradead.org; spf=none smtp.mailfrom=bombadil.srs.infradead.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b=wiq4onaB; arc=none smtp.client-ip=198.137.202.133 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=infradead.org Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=bombadil.srs.infradead.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="wiq4onaB" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20210309; h=In-Reply-To:Content-Type:MIME-Version :References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=ApHStimX9vO8afb2pgoWPG9MHpxSpNGMq6vSzrYXkvI=; b=wiq4onaB4pn4qb8/QHx7rQEypz 8PHj4dZ8NSoiLbKm3J9mnqcx6PMKNx3+n56JfJd3wCQ+Kiu9oeejOF1f1wLCWfPV5rP6QnHbbN8uu 39PcbICrh7bu6fiLIXGKFEaHhRMg4rcQEYSzzgl6QPMSCUPWbPRscflI974xy7lSIHQT8y+cIT82q 2XOrCB9xiaVqWfAtEf6Odgw28DIJTHICshE/HiNkOyEcVoKy50wCYSOSKM+DyShbucyfFPKYiOl0l KG5UpaZTaPeou4/paqNoK5/ZEfoS7XBCw6Dvgs0F1rj/C6+IBbp9U0oTThO6S9oO5yZzoJUf7JUR6 pcwlJNCg==; Received: from hch by bombadil.infradead.org with local (Exim 4.98 #2 (Red Hat Linux)) id 1tvGmx-0000000CN6x-07LL; Thu, 20 Mar 2025 14:22:27 +0000 Date: Thu, 20 Mar 2025 07:22:27 -0700 From: Christoph Hellwig To: Ming Lei Cc: Christoph Hellwig , Dave Chinner , Mikulas Patocka , Jens Axboe , Jooyung Han , Alasdair Kergon , Mike Snitzer , Heinz Mauelshagen , zkabelac@redhat.com, dm-devel@lists.linux.dev, linux-block@vger.kernel.org, linux-fsdevel@vger.kernel.org, io-uring@vger.kernel.org Subject: Re: [PATCH] the dm-loop target Message-ID: References: <7b8b8a24-f36b-d213-cca1-d8857b6aca02@redhat.com> Precedence: bulk X-Mailing-List: io-uring@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html On Thu, Mar 20, 2025 at 03:41:58PM +0800, Ming Lei wrote: > > That does not match my observations in say nvmet. But if you have > > numbers please share them. > > Please see the result I posted: > > https://lore.kernel.org/linux-block/Z9FFTiuMC8WD6qMH@fedora/ That shows it improves numbers and not that it doens't.